May in Campulung is the rainiest month of the year. In May, the weather in Campulung is typically warm. Average daily high temperature in May is about 14 degrees above zero. On average, Campulung has 26 rainy, 4 sunny, and 1 cloudy day in May. The rains are usually heavy. May as well as February, March, April, and June is considered the most uncomfortable time to visit Campulung.